☆ 4.7 Review

Novel approaches towards design of metal oxide based hetero-structures for room temperature gas sensor and its sensing mechanism: A recent progress

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

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Article Chemistry, Physical

One-pot synthesis of tin oxide/reduced graphene oxide composite coated fabric for wearable ammonia sensor with fast response/recovery rate

Ye Chen et al.

Summary: By using polyimide fabric as a flexible substrate, tin dioxide/reduced graphene oxide composite coated fabrics were prepared via electrostatic layer-by-layer self-assembly and in situ hydrothermal method. The composite coating showed excellent sensing performance for ammonia, with good linear response, high sensitivity, and fast response/recovery rate.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

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Article Engineering, Environmental

Selective detection of trace carbon monoxide at room temperature based on CuO nanosheets exposed to (111) crystal facets

Yuanyuan Wu et al.

Summary: Carbon monoxide (CO) intoxication incidents have been occurring frequently in recent years, highlighting the importance of sensitive CO detection. Most currently reported CO sensors have the disadvantage of requiring high working temperatures, making it a challenge to achieve sensitive detection at room temperature. In this study, CuO nanosheets with exposed active crystal facets and oxygen vacancy defects were successfully synthesized using a simple and environmentally friendly hydrothermal method. The sensor exhibited excellent comprehensive gas sensing performance, surpassing other sensors in detecting CO at room temperature. The response value to 100 ppm CO at room temperature reached as high as 39.6. Additionally, the sensor demonstrated excellent selectivity, low detection limit (100 ppb), good reproducibility, moisture resistance, and long-term stability (60 days). These outstanding gas sensing capabilities can be attributed to the unique structural characteristics of the 2D materials and the synergistic effect of the exposed active crystal facets and oxygen vacancy defects. Therefore, this sensor is expected to become a promising sensitive material for rapid and accurate detection of trace CO gas with low energy consumption, reducing the risk of poisoning and effectively protecting human life safety.

JOURNAL OF HAZARDOUS MATERIALS (2023)

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Article Chemistry, Analytical

Synergistic effect between UV light and PANI/Co3O4 content on TiO2 composite nanoparticles for room-temperature acetone sensing

Jae-Hyoung Lee et al.

Summary: Ternary hybrid composite of PANI-loaded Co3O4-TiO2 nanoparticles was synthesized and investigated for acetone sensing at 25°C. The 0.01 wt% PANI-loaded 0.85TiO2-0.15 Co3O4 composite nanoparticles showed the highest response to acetone under UV illumination. The improved performance was attributed to the formation of p-n heterojunctions, promising effects of PANI, and the UV light effect. This study highlights the potential of these compounds or related compounds for highly reliable acetone sensing at 25°C.

SENSORS AND ACTUATORS B-CHEMICAL (2023)

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Article Chemistry, Analytical

Graphitic carbon-doped SnO2 nanosheets-wrapped tubes for chemiresitive ppb-level nitric oxide sensors operated near room temperature

Bao-Yu Song et al.

Summary: The development of low-temperature metal oxide-based sensors with high sensitivity towards harmful ppb-level gases remains challenging. In this study, the researchers successfully fabricated a wood-inspired metal oxide sensor with excellent gas-sensing performance. The sensor, based on graphitic carbon-doped SnO2 material (GC/SnO2-6), exhibited high response and short recovery time towards NO gas. The sensor's outstanding performance can be attributed to its biomorphic structure, which has homogeneous mesopores, large specific surface area, and the synergism of graphitic carbon doping and abundant oxygen vacancies. This study also explored the enhanced sensing mechanism in detail.

SENSORS AND ACTUATORS B-CHEMICAL (2023)

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Article Chemistry, Analytical

Effect of {010} crystal facets of Bi2MoO6 and 1D/2D heterostructures for conductometric room temperature NH3 gas sensors

Kaidi Wu et al.

Summary: Pure Bi2MoO6 nanosheets and one-dimensional/two-dimensional (1D/2D) multi-walled CNTs/Bi2MoO6 nanocomposites were synthesized via a facile hydrothermal route for room-temperature ammonia monitoring. The 0.5 wt% MWCNTs/Bi2MoO6 nanocomposites showed the best sensing properties, including low detection limit (157 ppb), high response (Ra/Rg = 44.2 @ 50 ppm), selectivity, reproducibility, and anti-humidity sensing ability. The enhanced gas sensing mechanism was proposed based on the synergetic effect of high-energy crystal facets, modified surface characteristics, and p-n heterojunction.

SENSORS AND ACTUATORS B-CHEMICAL (2023)

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Review Chemistry, Multidisciplinary

Functionalization of Mesoporous Semiconductor Metal Oxides for Gas Sensing: Recent Advances and Emerging Challenges

Xuanyu Yang et al.

Summary: With the emergence of the Internet of Things, chemiresistive gas sensors have been extensively applied in various fields such as industrial production, food safety, medical diagnosis, and environment detection. The performance of gas sensors has been improved through the tailoring of sensitive materials' structure, functions, defects, and electrical conductivity. Among these sensitive materials, mesoporous semiconductor metal oxides, with tunable pore size, high specific surface area, abundant metal-oxygen bonds, and rapid mass transfer behavior, have been considered as the most promising. This article provides an overview of the synthesis strategies for mesoporous metal oxides, summarizes the classical functionalization techniques of sensitive materials, discusses the structure-function relationship at the molecular-atomic level, and proposes challenges and future perspectives for the development of intelligent gas sensors.

ADVANCED SCIENCE (2023)

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Article Chemistry, Physical

NiO-CuO hydrangeas-like composite derived from Ni/Cu bimetallic MOFs for sensitive detection of H2S at room temperature

Yanqiao Ding et al.

Summary: A strategy to adjust the reaction site by constructing heterojunction with mixed-metal oxide is proposed to overcome the sulfuration-induced poisoning issue in metal oxide semiconductor gas sensor.

APPLIED SURFACE SCIENCE (2023)

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Article Chemistry, Physical

UV-activated efficient formaldehyde gas sensor based on cauliflower-like graphene-modified In-doped ZnO at room temperature

Youzhi Yang et al.

Summary: This study synthesized graphene-modified In-doped ZnO composites via a facile one-pot method, which showed high response to low-concentration formaldehyde at room temperature. The highest response to 10 ppm formaldehyde was achieved by GR/In-ZnO-300, which was 12 times higher than In-ZnO-300. The detection limit of GR/In-ZnO-300 was as low as 13 ppb, with a response of 137% at this concentration. The excellent formaldehyde sensing performance of GR/In-ZnO-300 was attributed to the separation and transmission capacity of photogenerated carriers, high specific surface area, and abundant oxygen defects on the surface.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

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Article Chemistry, Analytical

E-nose based on a high-integrated and low-power metal oxide gas sensor array

Zhongzhou Li et al.

Summary: To improve the poor selectivity of semiconductor gas-sensor systems, a high-integrated and highly selective electronic nose (E-nose) with two independent gas-sensing elements on a low-power microhotplate (MHP) was proposed. Pd-SnO2 nanoflowers and Pd-WO3 microparticles were used to form an array of sensors on the MHP through electrohydrodynamic inkjet printing and in-situ infrared laser curing. The gas-sensor array achieved high response and low cross-sensitivity for various gases. Wavelet transform was applied to reduce noise and dimensionality of the signals. Qualitative identification accuracy of 99.86% was achieved using the k-nearest neighbor (kNN) model, while the p neighbors back propagation neural network (pN-BPNN) model improved quantitative identification accuracy for gas concentration estimation, especially for hydrogen.

SENSORS AND ACTUATORS B-CHEMICAL (2023)

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Article Chemistry, Physical

Gas sensing performance and charge-transfer mechanism of semiconducting single-walled carbon nanotubes

Tian Tian et al.

Summary: This study investigates the interfacial charge transfer between gas molecules and SWCNTs using the Raman shift of the 2D peak in SWCNTs. An exponential relationship between the 2D peak position and NO2 concentration has been established, providing a simple method to evaluate charge transfer and gas molecule adsorption state.

APPLIED SURFACE SCIENCE (2023)

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Article Chemistry, Physical

Internal doping of metallic carbon nanotubes for chemiresistive sensing of explosive molecules

Manasi Doshi et al.

Summary: Carbon nanotubes (CNTs) have been widely studied for chemical sensing applications, but their use in hazardous gas sensing has been limited by several issues. By incorporating metallic CNTs internally doped with encapsulated species, these problems may be addressed. This new sensor design offers improved selectivity, reversibility, temperature stability, and sensitivity to a range of analytes. Ab initio analysis suggests that internally doped metallic CNT sensor arrays can greatly enhance the performance of CNT-based gas sensors.

CHEMICAL PHYSICS (2023)

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Article Materials Science, Multidisciplinary

ZnO quantum dots decorated carbon nanotubes-based sensors for methanol detection at room temperature

Yotsarayuth Seekaew et al.

Summary: A highly sensitive methanol gas sensor at room temperature is developed by decorating ZnO quantum dots on carbon nanotubes via thermal vapor deposition and metal sparking technique. The ZnO quantum dots decorated carbon nanotubes show the highest response to methanol compared with other sparking times and undecorated materials, as well as high selectivity to methanol against other gases. The sensing mechanism of ZnO quantum dots decorated carbon nanotubes sensor is enhanced by the CNTs-ZnO QDs heterojunctions and quantum-size effects.

DIAMOND AND RELATED MATERIALS (2023)

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Article Materials Science, Multidisciplinary

Facile two step synthesis of chemiresistive sensor based on γFe2O3-activated carbon composites for room temperature alcohol vapour detection

Luna Jena et al.

Summary: In this research, AC-gamma Fe2O3 composite structures were prepared by pyrolysis of bamboo, showing promising alcohol sensing performance at room temperature with fast response, improved range of detection, and sensitivity. The chemiresistive p-n-type heterojunctions formed between AC and gamma Fe2O3 played a crucial role in the material's room temperature alcohol sensing performance.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING (2022)

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Article Materials Science, Multidisciplinary

Synthesis of PSi-n/CuO-p/Cu2O-n heterostructure for CO2 gas sensing at room temperature

Soraya Bouachma et al.

Summary: A n(+)-PSi/p-CuO/n-Cu2O bilayered heterostructure has been fabricated and tested for its performance in a CO2 gas environment. The results showed that the bilayer structure has high sensitivity and fast response time at low bias potential.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING (2022)

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Article Chemistry, Physical

Room temperature NO2 sensing performance of Ag nanoparticles modified VO2 nanorods

Jiran Liang et al.

Summary: The study focused on the preparation of Ag-modified VO2 nanorods using a two-step method to improve NO2 sensing performance at room temperature. The results showed that nanorods annealed at 450 degrees Celsius had the highest sensitivity, reaching a response value of up to 2.54-5 ppm NO2, while the response value decreased as humidity increased. The good sensing performance was attributed to the catalytic effect of Ag nanoparticles and the changing of the energy band gap.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Chemistry, Physical

TiO2 nanostructures with different crystal phases for sensitive acetone gas sensors

Shuang Cao et al.

Summary: Adjusting the crystal phase structure of sensing materials can optimize the gas sensing characteristics. Rutile phase TiO2 nanorods exhibit excellent sensing properties due to narrow band gap and more oxygen vacancies, showing a possible way for designing gas sensors with remarkable performances.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Materials Science, Multidisciplinary

Surface modified highly porous egg-shell membrane derived granular activated carbon coated on paper substrate and its humidity sensing properties

Deepa Kathiravan et al.

Summary: A highly porous activated carbon derived from hen egg-shell membrane biowaste was prepared for the detection of relative humidity, showing good sorption properties and rapid response capabilities.

MATERIALS CHEMISTRY AND PHYSICS (2022)

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Article Materials Science, Multidisciplinary

Doubly ionized oxygen vacancies dominated Co3O4 nanoparticles for highly selective NH3 sensing application at room temperature

Gui-Nian Li et al.

Summary: Polycrystalline Co3O4 nanoparticles synthesized by hydrothermal method with calcination show promising gas sensing properties towards ammonia, with high selectivity, good repeatability, and long-term stability. The enhanced sensing performance is mainly attributed to the high Co3+ concentration and abundant doubly ionized oxygen vacancies in the nanoparticles.

MATERIALS LETTERS (2022)

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Article Chemistry, Analytical

Selective room temperature ammonia gas sensor using nanostructured ZnO/CuO@graphene on paper substrate

Mohanraj Jagannathan et al.

Summary: The study successfully grew ZnO/CuO nanoflowers on graphene printed paper substrates for room temperature ammonia gas sensing. The fabricated substrate showed high sensing performance for low concentrations of ammonia, with quick response and recovery times. This method is effective for cost-effective and rapid detection of ammonia gas and potential for non-invasive early disease diagnosis.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Chemistry, Analytical

Comprehensively improved hydrogen sensing performance via constructing the facets homojunction in rutile TiO2 hierarchical structure

Xinlei Li et al.

Summary: A gas sensor with TiO2 hierarchical trunk/branch structure is prepared in the study, showing excellent sensing performance with fast response to 1 ppm H-2 concentration at room temperature. The sensor also exhibits long-term stability, high selectivity, and humidity resistance. The facet homojunction in the TiO2 hierarchical structure significantly increases the density of charged oxygen ions absorbed on the surface and enhances effective barrier height, leading to improved sensing performance.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Chemistry, Analytical

Effects of UV light irradiation on fluctuation enhanced gas sensing by carbon nanotube networks

Katarzyna Drozdowska et al.

Summary: The sensing characteristics of carbon nanotube networks in NO2 gas environment are significantly enhanced under UV irradiation, allowing detection of lower concentrations of NO2. At low concentrations, the 1/f noise component of the carbon nanotube network is dominantly present, and the reaction speed for gas absorption-desorption is faster.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Nanoscience & Nanotechnology

Precise regulation of weakly negative permittivity in CaCu3Ti4O12 metacomposites by synergistic effects of carbon nanotubes and grapheme

Han Wu et al.

Summary: The study successfully achieved negative permittivity by preparing ternary percolation nanocomposites, investigating the synergy between graphene and carbon nanotubes, and controlling the formation of conductive paths to regulate negative permittivity precisely.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2022)

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Article Chemistry, Physical

High performance humidity sensor based on 3D mesoporous Co3O4 hollow polyhedron for multifunctional applications

Yajie Zhang et al.

Summary: In this work, three-dimensional hollow mesoporous Co3O4 was successfully prepared and utilized as a humidity sensor. The humidity sensor exhibited excellent performance with a wide detection range, low hysteresis, and fast response/recovery times. Furthermore, potential applications in various fields were demonstrated for this humidity sensor.

APPLIED SURFACE SCIENCE (2022)

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Article Chemistry, Physical

Ethanol gas sensing mechanisms of p-type NiO at room temperature

Javier Bartolome et al.

Summary: Conductometric gas sensors based on metal oxide semiconductors often require high temperature operation, but this study focuses on room temperature operation of p-type NiO ceramic samples in response to ethanol. An anomalous response with fast response and recovery times is observed when the samples are synthesized at different temperatures, and a model is proposed to explain this unexpected resistance decrease upon ethanol exposure. This model could potentially lead to the development of fast sensors operating at room temperature for other MOS systems.

APPLIED SURFACE SCIENCE (2022)

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Article Chemistry, Physical

Room-temperature gas sensors based on titanium dioxide quantum dots for highly sensitive and selective H2S detection

Kaidi Wu et al.

Summary: In this study, controllable-sized TiO2 quantum dots were prepared via a rapid microwave-assisted solvothermal method for detecting ppb-level H2S at room temperature. The best sensing performance was achieved by the sample with ultra-small nanostructure and modified surface state, exhibiting high response, rapid response/recovery, low detection limit, good selectivity, and operating stability. The gas sensing mechanism was explained by the synergistic effect of ultra-small size, large specific surface area, and surface defects, and the practical application in detecting fish volatiles was also confirmed.

APPLIED SURFACE SCIENCE (2022)

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Article Materials Science, Ceramics

Manganese doped nickel oxide as room temperature gas sensor for formaldehyde detection

Riya Alice B. John et al.

Summary: The current investigation focuses on the synthesis of surface-modified Nickel Oxide (NiO) nanoparticles with excellent sensing properties for Formaldehyde (HCHO) gases by doping with Manganese (Mn) and varying the sintering temperature. The research reveals the presence of Mn ions in the Mn-doped NiO nanostructures and the superiority of the Mn-doped NiO nanospheres sintered at 500 degrees C in terms of gas sensing performance.

CERAMICS INTERNATIONAL (2022)

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Article Chemistry, Analytical

Self-template synthesis of mesoporous Au-SnO2 nanospheres for low-temperature detection of triethylamine vapor

Bingxi Feng et al.

Summary: A self-template synthesis strategy using plant polyphenol as a chelating agent was developed to successfully prepare mesoporous Au-SnO2 nanospheres for low-temperature detection of TEA. The nanospheres showed high response, low detection limit, and fast response time. This strategy has the potential to enhance the sensing performance of gas sensors.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Chemistry, Analytical

Detection of acetone via exhaling human breath for regular monitoring of diabetes by low-cost sensing device based on perovskite BaSnO3 nanorods

Arpit Verma et al.

Summary: This study found that the analysis of volatile organic compounds in exhaled breath can be used as a non-invasive monitoring tool for diabetes patients. The study reports the development of a quick responsive and highly sensitive acetone biosensor based on the perovskite BaSnO3. The sensor showed fast response time and high sensitivity.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Chemistry, Analytical

An electronic nose based on carbon nanotube-titanium dioxide hybrid nanostructures for detection and discrimination of volatile organic compounds

Mostafa Shooshtari et al.

Summary: This paper presents a modification to carbon nanotubes (CNTs) to improve the sensitivity to volatile organic compounds (VOCs) and enhance the stability of CNT sensors. By growing titanium dioxide nanowires (TiO2-NW) on the surface of CNTs, the sensors show increased sensitivity and reduced response time. Using virtual arrays of an electronic nose (E-nose), new features are extracted from the data and classified using support vector machine (SVM) algorithms. The paper achieves high accuracy in classifying different VOC gases.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Chemistry, Physical

Functionalized semiconducting carbon nanotube arrays for gas phase explosives detection

Manasi Doshi et al.

Summary: Single molecule detection systems are of great practical interest in applications requiring ultra-sensitive measurements, such as disease detection or explosives trace detection. Carbon nanotube sensors are being studied for their sensitivity, but a lack of selectivity has been a longstanding obstacle in developing ultra-sensitive systems. Ab initio modeling of functionalized semiconducting CNT arrays shows promise in sensitive and selective explosives detection.

SURFACE SCIENCE (2022)

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Review Chemistry, Multidisciplinary

A review of gas sensors based on carbon nanomaterial

Indah Raya et al.

Summary: As a new nanostructure, graphene has unique physical and chemical properties that make it an ideal candidate material for gas sensing. The development of carbon nanomaterials in sensor technology has opened up new possibilities but also presents challenges in competing with other nanomaterials in the market.

CARBON LETTERS (2022)

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Article Chemistry, Physical

Room-temperature high-performance ammonia gas sensing based on rGO nanosheets/MoO3 nanoribbons nanocomposites film

Yi Ou et al.

Summary: This study investigates the use of rGO/MoO3 nanocomposites as sensing materials for the sensitive detection of ultra-low concentration NH3 gas at room temperature. The results show that the rGO/MoO3 sensor outperforms the MoO3 sensor in terms of response rate and response speed, with a lower detection limit and good selectivity, humidity resistance, and stability.

FLATCHEM (2022)

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Article Chemistry, Physical

Realisation of highly sensitive and selective NO2 detection at room temperature utilizing defect-induced single-walled carbon nanotubes combined with Pt functionalisation

Youngmin Byoun et al.

Summary: This study developed a NO2 gas sensor with excellent selectivity and good performance in humid environments. By functionalizing and inducing defects in SWCNTs, the fabricated sensor achieved high sensitivity and low detection limit. However, the sensor's performance deteriorated under high humidity conditions.

APPLIED SURFACE SCIENCE (2022)

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Article Environmental Sciences

Improving the air quality with Functionalized Carbon Nanotubes: Sensing and remediation applications in the real world

Shikha Gulati et al.

Summary: This article introduces the method and advantages of using carbon nanotubes as adsorbents to purify the air, including the synthesis, functionalization, and purification methods of carbon nanotubes, as well as their applications in removing pollutants and detecting harmful gases.

CHEMOSPHERE (2022)

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Article Chemistry, Physical

High sensitive room temperature NO2 gas sensor based on the avalanche breakdown induced by Schottky junction in TiO2-Sn3O4 nanoheterojunctions

Duo Chen et al.

Summary: A novel sensor based on Schottky junction inducing avalanche breakdown effect in TiO2-Sn3O4 nanoheterojunctions is demonstrated for high-sensitivity NO2 gas sensing at room temperature. The Schottky contact functions as a gate to trigger the avalanche breakdown effect, and the detection can be achieved by tuning the Schottky barrier height and utilizing surface chemisorption of the gas and device bias.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Chemistry, Analytical

UV-activated WS2/SnO2 2D/0D heterostructures for fast and reversible NO2 gas sensing at room temperature

Yi Xia et al.

Summary: This study demonstrates the design of an optoelectronic gas sensor based on heterostructures by decorating SnO2 quantum dots on WS2 nanosheets to form 2D/0D structures. The sensor shows fast response/recovery rates and full reversibility to NO2 at room temperature, with enhanced response under ultraviolet illumination.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Chemistry, Analytical

Enhanced room-temperature NO2 sensing performance of SnO2/Ti3C2 composite with double heterojunctions by controlling co-exposed {221} and {110} facets of SnO2

Siwei Liu et al.

Summary: SnO2/Ti3C2 composites with Schottky and surface heterojunctions were synthesized via hydrothermal oxidation, demonstrating improved gas sensing performance and lower operation temperature. They exhibited outstanding responses and recycling performance to NO2.

SENSORS AND ACTUATORS B-CHEMICAL (2022)

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Article Engineering, Environmental

Room temperature gas sensors based on Ce doped TiO2 nanocrystals for highly sensitive NH3 detection

Kaidi Wu et al.

Summary: This study developed a series of Ce doped TiO2 nanocrystals for ammonia detection at room temperature, showing high performance in terms of response, detection limit, selectivity, repeatability, and stability. The enhanced sensing mechanism was explained by the synergetic effects of re-orientated high energy facets, oxygen vacancy, and large specific surface area. Furthermore, the practical application potential in fish freshness detection was also evaluated.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Room-temperature gas sensor based on in situ grown, etched and W-doped ZnO nanotubes functionalized with Pt nanoparticles for the detection of low-concentration H2S

Jingyue Xuan et al.

Summary: In this study, a high-performance room-temperature gas sensor was developed by functionalizing etched and W-doped ZnO nanotubes with Pt nanoparticles. The Pt@EW-ZnO NTs gas sensor exhibited improved response to H2S, high selectivity, and a low detection limit.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Chemistry, Physical

Preparation of near room temperature gas sensor based on regular octahedral porous ZnO/SnO2 composite

Jia-Bao Yu et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Chemistry, Physical

A highly efficient room-temperature formaldehyde gas sensor based on a Ni-doped ZnO hierarchical porous structure decorated with NiS illuminated by UV light

Youzhi Yang et al.

Summary: The development of room-temperature formaldehyde gas sensors with superior response-ability is crucial for various applications. In this study, Ni-doped ZnO hierarchical porous structures decorated with NiS composite materials were synthesized and used in room-temperature UV light-activated formaldehyde sensors. The 0.2% NiS/0.4% Ni-ZnO material showed a higher response value and faster response/recovery time compared to pure ZnO, which was attributed to the synergistic effect of Ni doping and NiS modification.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Environmental Sciences

Management of acute exposure to toxic gases in the oil & gas industry -a practical approach

Cesar G. Lizarazo Salcedo et al.

Summary: This work aims to present key elements in the design of emergency management and response plans for scenarios involving loss of containment of highly toxic chemical agents, with a focus on protecting individuals not routinely exposed to such substances in a specific occupational setting. Validation of current criteria for managing accidental releases is conducted, considering hypothetical risk scenarios. The study emphasizes the importance of designing and implementing appropriate emergency plans for uncontrolled emissions of toxic chemical agents, using hydrogen sulfide as a prototype.

ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH (2021)

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Review Chemistry, Physical

Recent advances in energy-saving chemiresistive gas sensors: A review

Sanjit Manohar Majhi et al.

Summary: This paper presents a discussion on types of gas sensors and energy-saving strategies, focusing on self-heated gas sensors, MEMS-based gas sensors, and room temperature operated flexible/wearable sensors, as well as their applications in environmental monitoring.

NANO ENERGY (2021)

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Article Chemistry, Physical

Novel SnO2-coated β-Ga2O3 nanostructures for room temperature hydrogen gas sensor

Q. N. Abdullah et al.

Summary: Nanostructured beta-Ga2O3 nanobelts were successfully fabricated using a thermal evaporation method, and a sol-gel processed SnO2 layer was deposited to modify the functionality of gallium oxide. The sensing characteristics of SnO2-functionalized beta-Ga2O3 nanobelts towards analyte gas H2 were found to be greatly improved within a certain concentration range.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

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Article Chemistry, Physical

Porosity and oxygen vacancy engineering of mesoporous WO3 nanofibers for fast and sensitive low-temperature NO2 sensing

Jinniu Zhang et al.

Summary: By adjusting the heating rate, the porosity and oxygen vacancy of mesoporous WO3 nanofibers were tuned, leading to enhanced low-temperature NO2 sensing performances.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Nanoscience & Nanotechnology

Self-template biomass-derived nitrogen and oxygen co-doped porous carbon for symmetrical supercapacitor and dye adsorption

Zhe Sun et al.

Summary: The study focuses on a self-template corncob porous carbon material with high oxygen and nitrogen content, exhibiting excellent capacitive performance and sewage treatment capability.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2021)

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Article Nanoscience & Nanotechnology

Lightweight Fe3C@Fe/C nanocomposites derived from wasted cornstalks with high-efficiency microwave absorption and ultrathin thickness

Guangyu Qi et al.

Summary: Carbon materials have great potential in producing microwave absorbers, with Fe3C@Fe/C composites obtained from wasted cornstalks showing excellent absorption capabilities. The credit for this lies in the impedance matching and attenuation properties of the composites, as well as the synergistic influence of dielectric and magnetic losses in the porous microstructure. A low-cost method using agricultural waste is proposed to reduce pollution caused by burning cornstalks.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2021)

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Review Chemistry, Physical

Improving Gas-Sensing Performance Based on MOS Nanomaterials: A Review

Shirui Xue et al.

Summary: This article focuses on the gas-sensing properties of MOS gas sensors, summarizing methods based on the interface effect of MOS materials and micro-nanostructures to improve performance, including noble metal modification, doping, and core-shell nanostructure. The mechanisms of these methods are described to analyze the advantages and disadvantages of energy barrier modulation and electron transfer for gas adsorption, with various research ideas proposed to enhance gas-sensing properties and discussions on perspectives for the development of MOS gas sensors.

MATERIALS (2021)

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High-Sensitivity Micro-Gas Chromatograph-Photoionization Detector for Trace Vapor Detection

Maxwell Wei-Hao Li et al.

Summary: This study presents an improved micro-photoionization detector with detection limits comparable to or exceeding benchtop flame ionization detectors, paving the way for the development of micro gas chromatography-photoionization detector systems.

ACS SENSORS (2021)

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Investigation on CH4 sensing characteristics of hierarchical V2O5 nanoflowers operated at relatively low temperature using chemiresistive approach

Veena Mounasamy et al.

ANALYTICA CHIMICA ACTA (2020)

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Effect of Some Process Parameters on the Main Properties of Activated Carbon Produced from Peat in a Lab-Scale Process

D. Bergna et al.

WASTE AND BIOMASS VALORIZATION (2020)

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Article Chemistry, Analytical

Selective C2H2 detection with high sensitivity using SnO2 nanorod based gas sensors integrated with a gas chromatography

Jun Ho Lee et al.

SENSORS AND ACTUATORS B-CHEMICAL (2020)

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Article Chemistry, Analytical

A room-temperature methane sensor based on Pd-decorated ZnO/rGO hybrids enhanced by visible light photocatalysis

Yi Xia et al.

SENSORS AND ACTUATORS B-CHEMICAL (2020)

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Article Nanoscience & Nanotechnology

Dominant Role of Heterojunctions in Gas Sensing with Composite Materials

Anna Staerz et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Nanoscience & Nanotechnology

Oxygen Vacancies Enabled Porous SnO2 Thin Films for Highly Sensitive Detection of Triethylamine at Room Temperature

Yongshan Xu et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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ZnO decorated flexible and strong graphene fibers for sensing NO2 and H2S at room temperature

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SnO2 nanoparticles-modified 3D-multilayer MoS2 nanosheets for ammonia gas sensing at room temperature

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Highly Sensitive Room-Temperature NO2 Gas Sensors Based on Three-Dimensional Multiwalled Carbon Nanotube Networks on SiO2 Nanospheres

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Visible light assisted room-temperature NO2 gas sensor based on hollow SnO2@SnS2 nanostructures

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Trimethylamine detection of 3D rGO/mesoporous In2O3 nanocomposites at room temperature

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Semi shield driven p-n heterostructures and their role in enhancing the room temperature ethanol gas sensing performance of NiO/SnO2 nanocomposites

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New Design of ZnO Nanorod- and Nanowire-Based NO2 Room-Temperature Sensors Prepared by Hydrothermal Method

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Near room temperature operable H2S sensors based on In2O3 colloidal quantum dots

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Characteristics of point defects on the room temperature ferromagnetic and highly NO2 selectivity gas sensing of p-type Mn3O4 nanorods

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High-performance room temperature NH3 gas sensors based on polyaniline-reduced graphene oxide nanocomposite sensitive membrane

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Ag-LaFeO3/NCQDs p-n heterojunctions for superior methanol gas sensing performance

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Review Engineering, Electrical & Electronic

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Understanding and Tuning the Electrical Conductivity of Activated Carbon: A State-of-the-Art Review

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Morphology controllable Fe2O3 nanostructures derived from Fe-based metal-organic frameworks for enhanced humidity sensing performances

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Highly selective few-ppm NO gas-sensing based on necklace-like nanofibers of ZnO/CdO n-n type I heterojunction

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Room temperature gas nanosensors based on individual and multiple networked Au-modified ZnO nanowires

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Multifunctional Screen-Printed TiO2 Nanoparticles Tuned by Laser Irradiation for a Flexible and Scalable UV Detector and Room-Temperature Ethanol Sensor

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Highly Sensitive and Selective PbTiO3 Gas Sensors with Negligible Humidity Interference in Ambient Atmosphere

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Hierarchical Branched Mesoporous TiO2-SnO2 Nanocomposites with Well-Defined n-n Heterojunctions for Highly Efficient Ethanol Sensing

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α-Fe2O3 loaded rGO nanosheets based fast response/recovery CO gas sensor at room temperature

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Superior triethylamine detection at room temperature by {-112} faceted WO3 gas sensor

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Room temperature toluene gas sensor based on TiO2 nanoparticles decorated 3D graphene-carbon nanotube nanostructures

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Octahedral SnO2/Graphene Composites with Enhanced Gas-Sensing Performance at Room Temperature

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Fabrication and characterization of a high-surface area MoS2@WS2 heterojunction for the ultra-sensitive NO2 detection at room temperature

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UV-light -assisted ethanol sensing characteristics of g-C3N4/ZnO composites at room temperature

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Improved gas sensing performance of Al doped ZnO/CuO nanocomposite based ammonia gas sensor

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UV excitation NO2 gas sensor sensitized by ZnO quantum dots at room temperature

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Pt-In2O3 mesoporous nanofibers with enhanced gas sensing performance towards ppb-level NO2 at room temperature

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Visible light-assisted room temperature gas sensing with ZnO-Ag heterostructure nanoparticles

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Crystal facet-dependent p-type and n-type sensing responses of TiO2 nanocrystals

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Boron-doped graphene quantum dot/Ag-LaFeO3 p-p heterojunctions for sensitive and selective benzene detection

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Improved gas sensing performance of Al doped ZnO/CuO nanocomposite based ammonia gas sensor

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A high-performance NH3 gas sensor based on TiO2 quantum dot clusters with ppb level detection limit at room temperature

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Observation of physisorption in a high-performance FET-type oxygen gas sensor operating at room temperature

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Fabrication of flexible room-temperature NO2 sensors by direct laser writing of In2O3 and graphene oxide composites

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Excellent room temperature ammonia gas sensing properties of n MoS2/P-CuO heterojunction nanoworms

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Precise gas discrimination with cross-reactive graphene and metal oxide sensor arrays

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APPLIED PHYSICS LETTERS (2018)

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NiO-Modified Coconut Shell Based Activated Carbon Pretreated with KOH for the High-Efficiency Adsorption of NO at Ambient Temperature

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Highly Selective Sensing of C2H6O, HCHO, and C3H6O Gases by Controlling SnO2 Nanoparticle Vacancies

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Advances on Sensors Based on Carbon Nanotubes

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Graphene materials as a superior platform for advanced sensing strategies against gaseous ammonia

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Effect of activated carbon on the enhancement of CO sensing performance of NiO

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Zinc oxide for gas sensing of formaldehyde: Density functional theory modelling of the effect of nanostructure morphology and gas concentration on the chemisorption reaction

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Dendritic composite array of silicon nanowires/WO3 nanowires for sensitive detection of NO2 at room temperature

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Sensitive H2S gas sensors employing colloidal zinc oxide quantum dots

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Automated room temperature optical absorbance CO sensor based on In-doped ZnO nanorod

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Percolation effect of reduced graphene oxide (rGO) on ammonia sensing of rGO-SnO2 composite based sensor

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2D WS2 nanosheets with TiO2 quantum dots decoration for high-performance ammonia gas sensing at room temperature

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Highly-sensitive H2 sensor operating at room temperature using Pt/TiO2 nanoscale Schottky contacts

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Improving the triethylamine sensing performance based on debye length: A case study on α-Fe2O3@NiO(CuO) core-shell nanorods sensor working at near room-temperature

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Room temperature methane sensing properties of α-Fe2-xCuxO3 nanoparticles

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Facet-engineered CeO2/graphene composites for enhanced NO2 gas-sensing

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Temperature-Dependent NO2 Sensing Mechanisms over Indium Oxide

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ZnO/γ-Fe2O3 Charge Transfer Interface toward Highly Selective H2S Sensing at a Low Operating Temperature of 30 °C

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Highly sensitive H2S sensors based on Cu2O/Co3O4 nano/microstructure heteroarrays at and below room temperature

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SCIENTIFIC REPORTS (2017)

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Micropatternable Double-Faced ZnO Nanoflowers for Flexible Gas Sensor

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ACS APPLIED MATERIALS & INTERFACES (2017)

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Natural Biowaste-Cocoon-Derived Granular Activated Carbon-Coated ZnO Nanorods: A Simple Route To Synthesizing a Core-Shell Structure and Its Highly Enhanced UV and Hydrogen Sensing Properties

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Microwave-Assisted Synthesis of Graphene-SnO2 Nanocomposites and Their Applications in Gas Sensors

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High-Performance Schottky Diode Gas Sensor Based on the Heterojunction of Three-Dimensional Nanohybrids of Reduced Graphene Oxide-Vertical ZnO Nanorods on an AIGaN/GaN Layer

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Accelerating Palladium Nanowire H2 Sensors Using Engineered Nanofiltration

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Single and Networked ZnO-CNT Hybrid Tetrapods for Selective Room-Temperature High-Performance Ammonia Sensors

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Synthesis of NiO@CuO nanocomposite as high-performance gas sensing material for NO2 at room temperature

He Xu et al.

APPLIED SURFACE SCIENCE (2017)

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Article Chemistry, Physical

Functionalized horizontally aligned CNT array and random CNT network for CO2 sensing

Yanrong Wang et al.

CARBON (2017)

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Article Chemistry, Physical

Ab-initio investigation of adsorption of CO and CO2 molecules on graphene: Role of intrinsic defects on gas sensing

Nacir Tit et al.

APPLIED SURFACE SCIENCE (2017)

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Article Nanoscience & Nanotechnology

Solution-Processed Gas Sensors Employing SnO2 Quantum Dot/MWCNT Nanocomposites

Huan Liu et al.

ACS APPLIED MATERIALS & INTERFACES (2016)

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Article Nanoscience & Nanotechnology

Nanostructured PdO Thin Film from Langmuir-Blodgett Precursor for Room-Temperature H2 Gas Sensing

Sipra Choudhury et al.

ACS APPLIED MATERIALS & INTERFACES (2016)

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Article Nanoscience & Nanotechnology

Room-Temperature High-Performance H2S Sensor Based on Porous CuO Nanosheets Prepared by Hydrothermal Method

Zhijie Li et al.

ACS APPLIED MATERIALS & INTERFACES (2016)

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Review Materials Science, Ceramics

Detection of hazardous volatile organic compounds (VOCs) by metal oxide nanostructures-based gas sensors: A review

A. Mirzaei et al.

CERAMICS INTERNATIONAL (2016)

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Article Chemistry, Physical

Sensitive Room-Temperature H2S Gas Sensors Employing SnO2 Quantum Wire/Reduced Graphene Oxide Nanocomposites

Zhilong Song et al.

CHEMISTRY OF MATERIALS (2016)

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Article Chemistry, Physical

Extraordinary room-temperature hydrogen sensing capabilities of porous bulk Pt-TiO2 nanocomposite ceramics

Wan Ping Chen et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2016)

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Article Chemistry, Multidisciplinary

Fabrication and Characterization of CuO Nanoparticles/ZnO Nanorods Heterojunction Structure for Room Temperature NO Gas Sensor Application

Hyeonjeong Hwang et al.

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY (2016)

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Article Chemistry, Inorganic & Nuclear

Trimethylamine sensing properties of graphene quantum Dots/α-Fe2O3 composites

Tao Hu et al.

JOURNAL OF SOLID STATE CHEMISTRY (2016)

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Article Chemistry, Analytical

Grain refining effect of calcium dopants on gas-sensing properties of electrospun α-Fe2O3 nanotubes

Changhui Zhao et al.

SENSORS AND ACTUATORS B-CHEMICAL (2016)

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Article Chemistry, Analytical

Near room-temperature triethylamine sensor constructed with CuO/ZnO P-N heterostructural nanorods directly on flat electrode

Qi Xu et al.

SENSORS AND ACTUATORS B-CHEMICAL (2016)

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Article Chemistry, Analytical

The oxidizing effect of humidity on WO3 based sensors

A. Staerz et al.

SENSORS AND ACTUATORS B-CHEMICAL (2016)

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Review Chemistry, Analytical

A review on non-dispersive infrared gas sensors: Improvement of sensor detection limit and interference correction

Trieu-Vuong Dinh et al.

SENSORS AND ACTUATORS B-CHEMICAL (2016)

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Article Chemistry, Analytical

Electrophoretic deposition of Au NPs on MWCNT-based gas sensor for tailored gas detection with enhanced sensing properties

Elena Dilonardo et al.

SENSORS AND ACTUATORS B-CHEMICAL (2016)

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Article Chemistry, Multidisciplinary

Atomistic modelling insight into the structure of lignite-based activated carbon and benzene sorption behavior

Yang Huang et al.

RSC ADVANCES (2016)

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Article Chemistry, Multidisciplinary

The influence of oxygen functional groups on gas-sensing properties of reduced graphene oxide (rGO) at room temperature

X. Wang et al.

RSC ADVANCES (2016)

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Article Chemistry, Multidisciplinary

Nitrogen-Doped Activated Carbon-Based Ammonia Sensors: Effect of Specific Surface Functional Groups on Carbon Electronic Properties

Nikolina A. Travlou et al.

ACS SENSORS (2016)

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Article Chemistry, Multidisciplinary

E-Nose Sensing of Low-ppb Formaldehyde in Gas Mixtures at High Relative Humidity for Breath Screening of Lung Cancer?

Andreas T. Guntner et al.

ACS SENSORS (2016)

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Article Nanoscience & Nanotechnology

High-Energy Faceted SnO2-Coated TiO2 Nanobelt Heterostructure for Near-Ambient Temperature-Responsive Ethanol Sensor

Guohui Chen et al.

ACS APPLIED MATERIALS & INTERFACES (2015)

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Article Chemistry, Multidisciplinary

Physisorption-Based Charge Transfer in Two-Dimensional SnS2 for Selective and Reversible NO2 Gas Sensing

Jian Zhen Ou et al.

ACS NANO (2015)

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Review Chemistry, Analytical

Recent progress in applications of graphene oxide for gas sensing: A review

Kei Toda et al.

ANALYTICA CHIMICA ACTA (2015)

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Article Environmental Sciences

Volatile organic compound conversion by ozone, hydroxyl radicals, and nitrate radicals in residential indoor air: Magnitudes and impacts of oxidant sources

Michael S. Waring et al.

ATMOSPHERIC ENVIRONMENT (2015)

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Article Chemistry, Physical

Sensitive and selective room temperature H2S gas sensor based on Au sensitized vertical ZnO nanorods with flower-like structures

Z. S. Hosseini et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2015)

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Article Chemistry, Physical

Indium Oxide Single-Walled Carbon Nanotube Composite for Ethanol Sensing at Room Temperature

James E. Ellis et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2015)

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Article Chemistry, Multidisciplinary

Role of the heterojunctions in In2O3-composite SnO2 nanorod sensors and their remarkable gas-sensing performance for NOx at room temperature

Shuang Xu et al.

NANOSCALE (2015)

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Article Chemistry, Analytical

NiO-wrapped mesoporous TiO2 microspheres based selective ammonia sensor at room temperature

Xiaogan Li et al.

SENSORS AND ACTUATORS B-CHEMICAL (2015)

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Article Chemistry, Analytical

Resistive gas sensors based on colloidal quantum dot (CQD) solids for hydrogen sulfide detection

Min Li et al.

SENSORS AND ACTUATORS B-CHEMICAL (2015)

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Article Chemistry, Analytical

Highly sensitive and selective room-temperature formaldehyde sensors using hollow TiO2 microspheres

Xiaogan Li et al.

SENSORS AND ACTUATORS B-CHEMICAL (2015)

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Review Chemistry, Multidisciplinary

Recent progress in quantum dot based sensors

Lei Cui et al.

RSC ADVANCES (2015)

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Review Chemistry, Physical

A review on mechanical exfoliation for the scalable production of graphene

Min Yi et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

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Article Nanoscience & Nanotechnology

Role of the Interfaces in Multiple Networked One-Dimensional Core Shell Nanostructured Gas Sensors

Sunghoon Park et al.

ACS APPLIED MATERIALS & INTERFACES (2014)

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Article Nanoscience & Nanotechnology

Surface Morphology-Dependent Room-Temperature LaFeO3 Nanostructure Thin Films as Selective NO2 Gas Sensor Prepared by Radio Frequency Magnetron Sputtering

S. Thirumalairajan et al.

ACS APPLIED MATERIALS & INTERFACES (2014)

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Article Nanoscience & Nanotechnology

Enhanced Sensitivity and Stability of Room-Temperature NH3 Sensors Using Core-Shell CeO2 Nanoparticles@Cross-linked PANI with p-n Heterojunctions

Lingling Wang et al.

ACS APPLIED MATERIALS & INTERFACES (2014)

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Article Nanoscience & Nanotechnology

Solvothermal, Chloroalkoxide-based Synthesis of Monoclinic WO3 Quantum Dots and Gas-Sensing Enhancement by Surface Oxygen Vacancies

Mauro Epifani et al.

ACS APPLIED MATERIALS & INTERFACES (2014)

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Article Electrochemistry

Electrochemical deposition of ZnO nanostructures onto porous silicon and their enhanced gas sensing to NO2 at room temperature

Dali Yan et al.

ELECTROCHIMICA ACTA (2014)

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Article Chemistry, Physical

Investigation of WO3/ZnO thin-film heterojunction-based Schottky diodes for H2 gas sensing

Y. Liu et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2014)

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Review Materials Science, Multidisciplinary

SnO2: A comprehensive review on structures and gas sensors

Soumen Das et al.

PROGRESS IN MATERIALS SCIENCE (2014)

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Article Chemistry, Analytical

Room temperature gas sensor based on tin dioxide-carbon nanotubes composite films

Frank Mendoza et al.

SENSORS AND ACTUATORS B-CHEMICAL (2014)

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Article Chemistry, Analytical

Vanadium pentoxide hierarchical structure networks for high performance ethanol gas sensor with dual working temperature characteristic

Yuxiang Qin et al.

SENSORS AND ACTUATORS B-CHEMICAL (2014)

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Article Chemistry, Analytical

Synthesis and characterization of transparent optical gas sensor device made of indium oxide pyramid like nanoarchitectures

W. Shirbeeny et al.

SENSORS AND ACTUATORS B-CHEMICAL (2014)

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Article Chemistry, Analytical

Room-temperature gas sensor using carbon nanotube with cobalt oxides

Daewoong Jung et al.

SENSORS AND ACTUATORS B-CHEMICAL (2014)

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Article Chemistry, Physical

Brookite TiO2 decorated α-Fe2O3 nanoheterostructures with rod morphologies for gas sensor application

Yanshuang Wang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2014)

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Review Chemistry, Multidisciplinary

Designed CVD Growth of Graphene via Process Engineering

Kai Yan et al.

ACCOUNTS OF CHEMICAL RESEARCH (2013)

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Article Chemistry, Multidisciplinary

A High-Performance Room-Temperature NO2 Sensor Based on An Ultrathin Heterojunction Film

Shiliang Ji et al.

ADVANCED MATERIALS (2013)

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Review Chemistry, Multidisciplinary

Mesoporous materials as gas sensors

Thorsten Wagner et al.

CHEMICAL SOCIETY REVIEWS (2013)

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Review Electrochemistry

Review of CVD Synthesis of Graphene

Roberto Munoz et al.

CHEMICAL VAPOR DEPOSITION (2013)

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Article Chemistry, Physical

Pore and Particle Size Control of Gas Sensing Films Using SnO2 Nanoparticles Synthesized by Seed-Mediated Growth: Design of Highly Sensitive Gas Sensors

Tetsuya Kida et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2013)

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Article Chemistry, Multidisciplinary

Alumina decorated TiO2 nanotubes with ordered mesoporous walls as high sensitivity NOx gas sensors at room temperature

Renjiang Lu et al.

NANOSCALE (2013)

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Article Chemistry, Multidisciplinary

High-performance room-temperature hydrogen sensors based on combined effects of Pd decoration and Schottky barriers

Bin Liu et al.

NANOSCALE (2013)

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Article Chemistry, Analytical

Synthesis of multi-dimensional ZnO nanostructures in aqueous medium for the application of gas sensor

Rajendra C. Pawar et al.

SENSORS AND ACTUATORS B-CHEMICAL (2013)

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Article Chemistry, Analytical

Gas sensing properties of novel CuO nanowire devices

S. Steinhauer et al.

SENSORS AND ACTUATORS B-CHEMICAL (2013)

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Article Chemistry, Analytical

Enhanced room temperature sensing of Co3O4-intercalated reduced graphene oxide based gas sensors

Ning Chen et al.

SENSORS AND ACTUATORS B-CHEMICAL (2013)

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Review Chemistry, Analytical

Gas sensors using carbon nanomaterials: A review

Eduard Llobet

SENSORS AND ACTUATORS B-CHEMICAL (2013)

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Article Multidisciplinary Sciences

Ultrahigh humidity sensitivity of graphene oxide

Hengchang Bi et al.

SCIENTIFIC REPORTS (2013)

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Article Chemistry, Physical

Graphene-based gas sensors

Wenjing Yuan et al.

JOURNAL OF MATERIALS CHEMISTRY A (2013)

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Review Chemistry, Analytical

Advances in materials for room temperature hydrogen sensors

Sunil K. Arya et al.

ANALYST (2012)

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Review Chemistry, Multidisciplinary

Volatile Organic Compounds of Lung Cancer and Possible Biochemical Pathways

Meggie Hakim et al.

CHEMICAL REVIEWS (2012)

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Article Chemistry, Physical

Low-cost synthesis of graphitic carbon nanofibers as excellent room temperature sensors for explosive gases

Wei Li et al.

JOURNAL OF MATERIALS CHEMISTRY (2012)

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Article Chemistry, Physical

Graphene-Based Chemical Sensors

Fazel Yavari et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2012)

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Article Biochemical Research Methods

An electrochemical gas sensor based on paper supported room temperature ionic liquids

Nicolo Dossi et al.

LAB ON A CHIP (2012)

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Review Chemistry, Analytical

Metal Oxide Nanostructures and Their Gas Sensing Properties: A Review

Yu-Feng Sun et al.

SENSORS (2012)

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Article Chemistry, Analytical

Cellulose-titanium dioxide-multiwalled carbon nanotube hybrid nanocomposite and its ammonia gas sensing properties at room temperature

Seongcheol Mun et al.

SENSORS AND ACTUATORS B-CHEMICAL (2012)

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Article Nanoscience & Nanotechnology

Facile Control of C2H5OH Sensing Characteristics by Decorating Discrete Ag Nanoclusters on SnO2 Nanowire Networks

In-Sung Hwang et al.

ACS APPLIED MATERIALS & INTERFACES (2011)

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Article Chemistry, Multidisciplinary

Thin-walled NiO tubes functionalized with catalytic Pt for highly selective C2H5OH sensors using electrospun fibers as a sacrificial template

Nam Gyu Cho et al.

CHEMICAL COMMUNICATIONS (2011)

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Article Chemistry, Multidisciplinary

Crystal facet engineering of semiconductor photocatalysts: motivations, advances and unique properties

Gang Liu et al.

CHEMICAL COMMUNICATIONS (2011)

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Article Chemistry, Physical

Enhanced UV activation of electrochemically doped Ni in ZnO nanorods for room temperature acetone sensing

Hosang Ahn et al.

CHEMICAL PHYSICS LETTERS (2011)

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Article Engineering, Environmental

Surface modification of coconut shell based activated carbon for the improvement of hydrophobic VOC removal

Lin Li et al.

JOURNAL OF HAZARDOUS MATERIALS (2011)

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Article Materials Science, Multidisciplinary

Application of SnO2/MWCNTs nanocomposite for SF6 decomposition gas sensor

HongFa Dai et al.

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE (2011)

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Article Chemistry, Analytical

Enhanced C2H5OH sensing characteristics of nano-porous In2O3 hollow spheres prepared by sucrose-mediated hydrothermal reaction

Sun-Jung Kim et al.

SENSORS AND ACTUATORS B-CHEMICAL (2011)

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Article Chemistry, Analytical

Synthesis and enhanced gas-sensing properties of ultralong NiO nanowires assembled with NiO nanocrystals

Bin Liu et al.

SENSORS AND ACTUATORS B-CHEMICAL (2011)

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Article Chemistry, Analytical

Epitaxially grown graphene based gas sensors for ultra sensitive NO2 detection

R. Pearce et al.

SENSORS AND ACTUATORS B-CHEMICAL (2011)

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Article Chemistry, Analytical

Carbon dioxide gas sensor using a graphene sheet

Hyeun Joong Yoon et al.

SENSORS AND ACTUATORS B-CHEMICAL (2011)

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Review Chemistry, Analytical

Semiconducting metal oxides as sensors for environmentally hazardous gases

K. Wetchakun et al.

SENSORS AND ACTUATORS B-CHEMICAL (2011)

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Article Chemistry, Physical

Production, properties and potential of graphene

Caterina Soldano et al.

CARBON (2010)

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Review Chemistry, Analytical

A review on surface modification of activated carbon for carbon dioxide adsorption

Mohammad Saleh Shafeeyan et al.

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS (2010)

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Article Chemistry, Analytical

Nanojunction effects in multiple ZnO nanowire gas sensor

R. Khan et al.

SENSORS AND ACTUATORS B-CHEMICAL (2010)

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Article Chemistry, Analytical

Highly sensitive and selective detection of NO2 using epitaxial graphene on 6H-SiC

Md. W. K. Nomani et al.

SENSORS AND ACTUATORS B-CHEMICAL (2010)

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Article Chemistry, Analytical

Acetone sensing property of ZnO quantum dots embedded on PVP

S. S. Nath et al.

SENSORS AND ACTUATORS B-CHEMICAL (2010)

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Article Chemistry, Multidisciplinary

Room-Temperature Gas Sensing Based on Electron Transfer between Discrete Tin Oxide Nanocrystals and Multiwalled Carbon Nanotubes

Ganhua Lu et al.

ADVANCED MATERIALS (2009)

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Article Chemistry, Physical

Size-controlled synthesis of graphene oxide sheets on a large scale using chemical exfoliation

Long Zhang et al.

CARBON (2009)

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Article Chemistry, Multidisciplinary

Flexible High-Conductivity Carbon-Nanotube Interconnects Made by Rolling and Printing

S. Tawfick et al.

SMALL (2009)

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Review Chemistry, Multidisciplinary

Carbon nanotube gas and vapor sensors

Douglas R. Kauffman et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2008)

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Article Nanoscience & Nanotechnology

Room temperature Cl2 sensing using thick nanoporous films of Sb-doped SnO2

Allen Chaparadza et al.

NANOTECHNOLOGY (2008)

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Article Chemistry, Analytical

Fabrication and characterisation of microporous activated carbon-based pre-concentrators for benzene vapours

F. Blanco et al.

SENSORS AND ACTUATORS B-CHEMICAL (2008)

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Article Chemistry, Analytical

Highly sensitive thin film NH3 gas sensor operating at room temperature based on SnO2/MWCNTs composite

Nguyen Van Hieu et al.

SENSORS AND ACTUATORS B-CHEMICAL (2008)

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Article Chemistry, Physical

Detection of individual gas molecules adsorbed on graphene

F. Schedin et al.

NATURE MATERIALS (2007)

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Article Chemistry, Multidisciplinary

Synthesis and characterization of chromium-doped mesoporous tungsten oxide for gas-sensing applications

Emma Rossinyol et al.

ADVANCED FUNCTIONAL MATERIALS (2007)

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Article Chemistry, Analytical

Catalytic combustion type hydrogen gas sensor using TiO2 and UV-LED

Chi-Hwan Han et al.

SENSORS AND ACTUATORS B-CHEMICAL (2007)

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Article Chemistry, Analytical

CuO-doped BSST thick film resistors for ppb level H2S gas sensing at room temperature

G. H. Jain et al.

SENSORS AND ACTUATORS B-CHEMICAL (2007)

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Article Chemistry, Multidisciplinary

Graphene sensor achieves ultimate sensitivity

Simon Hadlington

CHEMISTRY WORLD (2007)

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Article Energy & Fuels

Modeling of activated carbon production from lignite

M. V. Navarro et al.

ENERGY & FUELS (2006)

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Article Chemistry, Analytical

Detection of H2S down to ppb levels at room temperature using sensors based on ZnO nanorods

CH Wang et al.

SENSORS AND ACTUATORS B-CHEMICAL (2006)

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Article Chemistry, Multidisciplinary

A highly efficient chemical sensor material for H2S:: α-Fe2O3 nanotubes fabricated using carbon nanotube templates

ZY Sun et al.

ADVANCED MATERIALS (2005)

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Article Chemistry, Physical

Surface modification and characterisation of a coal-based activated carbon

P Chingombe et al.

CARBON (2005)

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Article Physics, Applied

Contact-controlled sensing properties of flowerlike ZnO nanostructures

P Feng et al.

APPLIED PHYSICS LETTERS (2005)

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Article Physics, Applied

Room-temperature semiconductor gas sensor based on nonstoichiometric tungsten oxide nanorod film

YS Kim et al.

APPLIED PHYSICS LETTERS (2005)

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Article Nanoscience & Nanotechnology

Multi-walled carbon nanotubes experiencing electrical breakdown as gas sensors

JY Chung et al.

NANOTECHNOLOGY (2004)

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Article Multidisciplinary Sciences

Electric field effect in atomically thin carbon films

KS Novoselov et al.

SCIENCE (2004)

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Article Chemistry, Multidisciplinary

Carbon nanotube sensors for gas and organic vapor detection

J Li et al.

NANO LETTERS (2003)

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Article Materials Science, Multidisciplinary

Production and characterization of zinc oxide thin films for room temperature ozone sensing

M Bender et al.

THIN SOLID FILMS (2002)

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Article Chemistry, Analytical

The influence of deposition parameters on room temperature ozone sensing properties of InOx films

E Gagaoudakis et al.

SENSORS AND ACTUATORS B-CHEMICAL (2001)

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Article Chemistry, Analytical

Theory of gas-diffusion controlled sensitivity for thin film semiconductor gas sensor

G Sakai et al.

SENSORS AND ACTUATORS B-CHEMICAL (2001)

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Article Physics, Multidisciplinary

Novel electronic properties of a nano-graphite disordered network and their iodine doping effects

Y Shibayama et al.

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN (2000)

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